Home / 11,327.84-15,647.12-8,622.62

Finding the Fourth Proportional to 11,327.84, 15,647.12 and 8,622.62

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Solution

The fourth proportional to 11,327.84, 15,647.12 and 8,622.62 is: 11,910.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,327.84 : 15,647.12 = 8,622.62 : x
  2. Step 2: Convert to fraction form
    11,327.84/15,647.12 = 8,622.62/x
  3. Step 3: Cross multiply
    11,327.84x = 15,647.12 × 8,622.62
  4. Step 4: Simplify right side
    11,327.84x = 134,919,169.85
  5. Step 5: Solve for x
    x = 134,919,169.85/11,327.84
  6. Step 6: Final answer
    x = 11,910.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.